in the national league west. the 49ers hosting detroit in the home opener sunday at the stick. and this is a grudge rematch. jim harbaugh's handshake last year was deemed inappropriate in coaching circles. it was more of the slap on the back afterwards. on defense the lions have a beast. he is unblockable with just one man, known as one of the dirtest players in the nfl and he will give the niners a lot to think about on the defensive line. >> the d-line is definitely a strength of theirs. look at them. a lot of guys up front that can play football at a high level. you never know. you play a team twice, pretty sure it won't be the same way they played us last time. so have to get ready for some of the unknown. and you know, what they will try to take away and what their focus will be. >> nothing like the home opener. cal bears have their hands full and starting off in columbus, ohio to face the buckeyes on saturday. the final tune up for cal before they hit the pack 12 portion of their schedule. they get usc the following week in l.a. cals have not faced ohio state since 1972.